isp1122 NXP Semiconductors, isp1122 Datasheet - Page 4

• Manufacturer Part Number: isp1122
• Description: Isp1122 Universal Serial Bus Stand-alone Hub
• Manufacturer: NXP Semiconductors

Philips Semiconductors
9397 750 07002
Product specification
Table 2:
Symbol
OC2
OC3
OC4
OC5/GOC
DM4
DP4
SP/BP
HUBGL
PSW3/GL3
PSW4/GL4
PSW5/GL5/
GPSW
XTAL1
XTAL2
RESET
OPTION/SCL
INDV/SDA
DM5
DP5
DM1
[3]
[2]
[1]
Pin description for SO32 and SDIP32
[3]
[3]
[3]
Pin
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
Rev. 03 — 29 March 2000
Type
AI/I
AI/I
AI/I
AI/I
AI/O
AI/O
I
O
O
O
O
I
O
I
I/O
I/O
AI/O
AI/O
AI/O
Description
overcurrent sense input for downstream port 2 (analog
overcurrent sense input for downstream port 3 (analog
overcurrent sense input for downstream port 4 (analog
modes 5, 7: overcurrent sense input for downstream port 5
(analog
modes 0, 1, 3: global overcurrent sense input (analog
downstream port 4 D connection (analog)
downstream port 4 D connection (analog)
selects power mode:
self-powered: connect to V
this mode for hybrid-powered operation
bus-powered: connect to GND; disable downstream port 5 to
meet supply current requirements
hub GoodLink LED indicator output (open-drain, 6 mA);
to connect an LED use a 330
connect to V
modes 4 to 6: power switch control output for downstream
port 3 (open-drain, 6 mA)
modes 0 to 3, 7: GoodLink LED indicator output for
downstream port 3 (open-drain, 6 mA); to connect an LED
use a 330
modes 4 to 6: power switch control output for downstream
port 4 (open-drain, 6 mA)
modes 0 to 3, 7: GoodLink LED indicator output for
downstream port 4 (open-drain, 6 mA); to connect an LED
use a 330
mode 5: power switch control output for downstream port 5
(open-drain, 6 mA)
modes 3, 7: GoodLink LED indicator output for downstream
port 5 (open-drain, 6 mA); to connect an LED use a 330
series resistor
modes 0 to 2: gang mode power switch control output
(open-drain, 6 mA)
crystal oscillator input (6 MHz)
crystal oscillator output (6 MHz)
reset input (Schmitt trigger); a LOW level produces an
asynchronous reset; connect to V
(internal POR circuit)
mode selection input; also functions as I
(open-drain, 6 mA)
selects individual (HIGH) or global (LOW) power switching
and overcurrent detection; also functions as bidirectional
I
downstream port 5 D connection (analog)
downstream port 5 D connection (analog)
downstream port 1 D connection (analog)
2
C-bus data line (open-drain, 6 mA)
[5]
)
CC
series resistor
series resistor
via a 10 k resistor
…continued
DD
(local power supply); also use
series resistor; if unused
CC
[4]
for power-on reset
USB stand-alone hub
© Philips Electronics N.V. 2000. All rights reserved.
2
C-bus clock output
[4]
[4]
[4]
[4]
[6]
ISP1122
[5]
[5]
[5]
[5]
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